Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (4): 435-445.doi: 10.11947/j.AGCS.2018.20170306

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Astronomical Orientation Method Based on Lunar Observations Utilizing Super Wide Field of View

PU Junyu, ZHENG Yong, LI Chonghui, ZHAN Yinhu, CHEN Shaojie   

  1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450001, China
  • Received:2017-06-12 Revised:2018-01-29 Online:2018-04-20 Published:2018-05-02
  • Supported by:
    The National Natural Science Foundation of China (Nos. 11673076;41604011;41704006)

Abstract: In this paper,astronomical orientation is achieved by observing the moon utilizing camera with super wide field of view,and formulae are deduced in detail.An experiment based on real observations verified the stability of the method.In this experiment,after 15 minutes' tracking shoots,the internal precision could be superior to ±7.5" and the external precision could approximately reach ±20".This camera-based method for astronomical orientation can change the traditional mode (aiming by human eye based on theodolite),thus lowering the requirements for operator's skill to some extent.Furthermore,camera with super wide field of view can realize the function of continuous tracking shoots on the moon without complicated servo control devices.Considering the similar existence of gravity on the moon and the earth's phase change when observed from the moon,once the technology of self-leveling is developed,this method can be extended to orientation for lunar rover by shooting the earth.

Key words: astronomical orientation, super wide field of view, camera, continuous tracking, moon

CLC Number: